/**
 * Component tests
 */

import React from 'react';
import { render, screen, fireEvent } from '@testing-library/react';
import '@testing-library/jest-dom';

// Mock antd components to avoid complex dependencies
jest.mock('antd', () => ({
  Layout: {
    Header: ({ children }: { children: React.ReactNode }) => <header>{children}</header>,
    Content: ({ children }: { children: React.ReactNode }) => <main>{children}</main>,
  },
  Menu: {
    Item: ({ children }: { children: React.ReactNode }) => <li>{children}</li>,
  },
  Button: ({ children, onClick }: { children: React.ReactNode; onClick?: () => void }) => (
    <button onClick={onClick}>{children}</button>
  ),
}));

// Mock React Router
jest.mock('react-router-dom', () => ({
  useNavigate: () => jest.fn(),
  useLocation: () => ({ pathname: '/dashboard' }),
  useParams: () => ({}),
}));

// Simple test component
const TestComponent: React.FC<{ title: string; onClick?: () => void }> = ({ title, onClick }) => {
  return (
    <div data-testid="test-component">
      <h1>{title}</h1>
      <button onClick={onClick} data-testid="test-button">
        Click me
      </button>
    </div>
  );
};

// Navigation-like component
const NavigationComponent: React.FC<{ title: string }> = ({ title }) => {
  const menuItems = ['Dashboard', 'Teams', 'Search', 'Analysis'];

  return (
    <header data-testid="navigation">
      <h1>{title}</h1>
      <nav>
        <ul>
          {menuItems.map(item => (
            <li key={item} data-testid={`menu-item-${item.toLowerCase()}`}>
              {item}
            </li>
          ))}
        </ul>
      </nav>
    </header>
  );
};

// Dashboard-like component
const DashboardComponent: React.FC<{ stats?: any }> = ({ stats = {} }) => {
  return (
    <div data-testid="dashboard">
      <h2>Dashboard</h2>
      <div data-testid="stats-container">
        <div data-testid="stat-metrics">Total Metrics: {stats.totalMetrics || 0}</div>
        <div data-testid="stat-teams">Total Teams: {stats.totalTeams || 0}</div>
        <div data-testid="stat-analyzed">Analyzed: {stats.analyzed || 0}</div>
      </div>
    </div>
  );
};

describe('Component Tests', () => {
  test('renders test component correctly', () => {
    render(<TestComponent title="Test Title" />);

    expect(screen.getByTestId('test-component')).toBeInTheDocument();
    expect(screen.getByText('Test Title')).toBeInTheDocument();
    expect(screen.getByTestId('test-button')).toBeInTheDocument();
  });

  test('handles click events', () => {
    const handleClick = jest.fn();
    render(<TestComponent title="Test" onClick={handleClick} />);

    fireEvent.click(screen.getByTestId('test-button'));
    expect(handleClick).toHaveBeenCalledTimes(1);
  });

  test('navigation component renders menu items', () => {
    render(<NavigationComponent title="Test App" />);

    const navigation = screen.getByTestId('navigation');
    expect(navigation).toBeInTheDocument();
    expect(screen.getByText('Test App')).toBeInTheDocument();
    expect(screen.getByTestId('menu-item-dashboard')).toBeInTheDocument();
    expect(screen.getByTestId('menu-item-teams')).toBeInTheDocument();
    expect(screen.getByTestId('menu-item-search')).toBeInTheDocument();
    expect(screen.getByTestId('menu-item-analysis')).toBeInTheDocument();
  });

  test('dashboard component displays stats', () => {
    const mockStats = {
      totalMetrics: 150,
      totalTeams: 5,
      analyzed: 75
    };

    render(<DashboardComponent stats={mockStats} />);

    expect(screen.getByTestId('dashboard')).toBeInTheDocument();
    expect(screen.getByText('Dashboard')).toBeInTheDocument();
    expect(screen.getByTestId('stat-metrics')).toHaveTextContent('Total Metrics: 150');
    expect(screen.getByTestId('stat-teams')).toHaveTextContent('Total Teams: 5');
    expect(screen.getByTestId('stat-analyzed')).toHaveTextContent('Analyzed: 75');
  });

  test('dashboard component handles missing stats', () => {
    render(<DashboardComponent />);

    expect(screen.getByTestId('stat-metrics')).toHaveTextContent('Total Metrics: 0');
    expect(screen.getByTestId('stat-teams')).toHaveTextContent('Total Teams: 0');
    expect(screen.getByTestId('stat-analyzed')).toHaveTextContent('Analyzed: 0');
  });

  test('component updates on prop change', () => {
    const { rerender } = render(<TestComponent title="Initial Title" />);

    expect(screen.getByText('Initial Title')).toBeInTheDocument();

    rerender(<TestComponent title="Updated Title" />);
    expect(screen.getByText('Updated Title')).toBeInTheDocument();
  });

  test('handles conditional rendering', () => {
    const ConditionalComponent: React.FC<{ show: boolean }> = ({ show }) => {
      if (!show) return null;
      return <div data-testid="conditional-content">Visible</div>;
    };

    const { rerender } = render(<ConditionalComponent show={false} />);
    expect(screen.queryByTestId('conditional-content')).not.toBeInTheDocument();

    rerender(<ConditionalComponent show={true} />);
    expect(screen.getByTestId('conditional-content')).toBeInTheDocument();
    expect(screen.getByText('Visible')).toBeInTheDocument();
  });

  test('handles form input simulation', () => {
    const FormComponent: React.FC = () => {
      const [value, setValue] = React.useState('');

      return (
        <div>
          <input
            data-testid="form-input"
            value={value}
            onChange={(e) => setValue(e.target.value)}
            placeholder="Enter text"
          />
          <div data-testid="input-value">{value}</div>
        </div>
      );
    };

    render(<FormComponent />);

    const input = screen.getByTestId('form-input');
    const valueDisplay = screen.getByTestId('input-value');

    expect(valueDisplay).toHaveTextContent('');

    fireEvent.change(input, { target: { value: 'test input' } });

    expect(input).toHaveValue('test input');
    expect(valueDisplay).toHaveTextContent('test input');
  });

  test('handles loading states', () => {
    const LoadingComponent: React.FC<{ loading: boolean }> = ({ loading }) => {
      if (loading) {
        return <div data-testid="loading-spinner">Loading...</div>;
      }
      return <div data-testid="content">Content Loaded</div>;
    };

    const { rerender } = render(<LoadingComponent loading={true} />);
    expect(screen.getByTestId('loading-spinner')).toBeInTheDocument();
    expect(screen.queryByTestId('content')).not.toBeInTheDocument();

    rerender(<LoadingComponent loading={false} />);
    expect(screen.getByTestId('content')).toBeInTheDocument();
    expect(screen.queryByTestId('loading-spinner')).not.toBeInTheDocument();
  });

  test('handles error states', () => {
    const ErrorComponent: React.FC<{ error: string | null }> = ({ error }) => {
      if (error) {
        return <div data-testid="error-message">Error: {error}</div>;
      }
      return <div data-testid="success-content">Success</div>;
    };

    const { rerender } = render(<ErrorComponent error={null} />);
    expect(screen.getByTestId('success-content')).toBeInTheDocument();
    expect(screen.queryByTestId('error-message')).not.toBeInTheDocument();

    rerender(<ErrorComponent error="Something went wrong" />);
    expect(screen.getByTestId('error-message')).toBeInTheDocument();
    expect(screen.getByText('Error: Something went wrong')).toBeInTheDocument();
    expect(screen.queryByTestId('success-content')).not.toBeInTheDocument();
  });
});